Fig. 3

Clinical efficacy after treatment. a Before treatment, the disease was complicated with a huge ulcer, and the treatment of multiple interventional embolization was ineffective. b Postnasal compression using a water-filled Foley catheter was conducted to stop severe nasal bleeding. C After one round of radiofrequency ablation, the bleeding in the nasal cavity stopped. All lesions disappeared after four rounds of radiofrequency ablation. d The trapezius myocutaneous flap was used to repair the facial defects. e After 30 months of treatment, no recurrence was found. f After 30 months of treatment, no recurrence was found